Continuous evaporator for vegetable and fruit pulps



Feb. 27, 1923.

F. C. MARZQ CONTINUOUS EVAPORATOR FOR VEGETABLE AND FRUIT PULPSPatentedebu 27, 1923.

Application filed April 30,

To all? whom it may con cm 7 Be it known that l i a citizen of theUnited I la ceu' or California, have and useful Jontinuous Evapor-Vegetable and l ruit Pulps, of following is a specification.

My invention relates to apparatus ducing fruit and vegetable pulp, andsists in the provisionot the new and features and the improved consruction, combination and arrangemen 01 the purpose of which will beappare a, to

skilled in the art, from a consid the preferred form or constructionshown' herein.

lhe

tended no G. MAnzo, States, at

invention is more particularly infor use in reducing to astifi pulp,cooked fruit or vegetable liquid conunonly lzuo to the art puree thesaline being. more highly fluid than the pulp to which is desired itshall be reduced. It custoinaryto reduce this thickened sub n as s anceto a be used g predetermined consistency.

The principal object oi this invention is to provide an evaporator ofthis character that will occupy a small space relative to the work wi laccomplish. 7

Another object of the invention is to pro;

vide an evaporator in which a positive yet simple control both the hot ii. *r'ce or pulp is provided, whereby the desired evaporation is easilyand accurately acconn plished. 40" Another object is to provide anevaporator of simple construction which will bedurable and elfect-ive inoperat and which "ill capable oi handlii I arge quantities or p p, r p15 A feature of 'the lnventiou is that the )OlfltOl entirely automaticexcept 3 reopening and closing of valves; conse quently eliniinating allarduous labor.

Ct-her objects advantages and features of invention may appear from the,accompanyp drawing; the subjoined detail descripnon and the appendedCllilillS. The drawing illustrates the invention. The figure is acentral longitudinal section 31 which has on its PLAGENTIA, CALIFQRNIA.

VEGETABLE AND PULPS.

5: ends oi the cylinder be ing closed by the plates i and 5 which. arepositioned on the inside of the cylinder where they-are secured to thering angle irons G by any well l-tnown means.

i The exterior surface of the plates l and o are reinforced by the.ribbed bearing plates 8 and'9 secured to the plates by well known means.

Through the plates stand 5 and the bean ing plates 8 and 9 are thecentral openings 11) and 11 which form bearings for the hollow shafts 12and 13. In the openings and 11 are the packings 1d and 15, secured inplace by the packing rings 16 and 1'7, said packing rings being securedto the plates 8 and 9 by means of the stud bolts 18. The packing isintended to prevent the escape of steam around the shafts 10 and 11 fromthe cylinder 1. r

The inner ends of the hollow shafts 10 and 11 have integral therewiththe concave heads 19 and 20 to which are secured by any common m ans thering angle irons 21' and 5 "7 .e concave heads 19 and 20 are rein-- bythe ribbed plates 23 and 24:; and to these heads andv also to the ringangle irons 21 and 22 is secured the inner cylinder 25.

Within the hollow shaft 13 are secured the spiders 26 Whichhave acentral opening therethrough' large enough for a loose mounting of theteed pipe 27 which prei r ably has its discharge end turned downward.

The other end of the )ipe 27 is turned upward and connected toreceptacle 28 and to conduct liquid fruitor vegetable pulp from saidreceptacle to we vaporating appliance. Near to the intake of said pipeis the hand valve 29.

The receptacle 28 is supplied with pulp from a source not shown. throughthe pipe 30: and within the receptacle 28 is a float ppe; he the stem()ll .vhich stem is pointed like a cone valve and performs the functionthereof by enteringthe end of the pipe 30 and shutting oil the supply'ofpulp when the recc iitaclc i8 hmbeen filled suthciently to raise thefloat to a position which would close the pipe 30.

From the foregoing it maybe seen that 1 well of export niphei rode ler,and cylinder r lily rea' piecleterr e cylir the ice 'el hit PI'ZtOlJwest the l 50 its to zit the tluie 1 eptecle (it city 01 a ste meteri ecentrifueel sure oi dj u he r

h be materiel e9;

ithe (i velo be i with the receptacle 28 filled'with p11 material Willpass t discharged thr inder 25 5 any desir passed to the c stream.

The hollow s! G 1 II t Are 7 LQU 1 S w F 1 0 t w: 7

into the (Yl he ch 7 1e next when net the ,-:ed the discharge wind 90ider 3 (T t :1 force the (lured.

eons

he requi he; means pro :t till",

dis

um th W 1111 rote get i o Wl min etc:

eesil e tor power it he e1 orement the n I pod cyiin tli it ence he ed terr through the h nu vs C i l 11 i (L air shown I c suflicie Dre- A norb s in the cylinie dis 1 I. U i Q 1 3 1, l. f e d l net: linder is madesari vhi-ch e di d pi

me e cvliniler seen the are iron eh. the

l ell t r edg e illOiStUI surfa .th the theremctly r Whicl cyim :1 on

irikiece ot side of era :neet

will 1.;

eve

nder

i There is elso'provided the nnei oration of: 1

i it said to DI'Q r the int;

.gormed by s Ollrrlli e 0e snhjecte of l h rem.

ed to the cyl c 4r wlnch plpe is ctt boiler, not s the r ovidt s the" Vtee eref

and w which the is pr ge he her e t.

1' to insure of the pul he 1 4 cylinder hereby h; l 7 h per 1:0.

n or

ge end thereoi. .1 orde e in me ec p to ham] to "1 ga atoin can knowremov eal g he same isture tl nder 25 1S 1 D how h 1151a he re ovidedh 1) over t along W1 the xplosion. I At the discharge end of there pr 25and t ill 1 ll t .ser t the cyl sup he 35 inder l discharges from the 'eand steam pres against e and i the 1311 length of f let From the rovidedwith the h ceueie essiiig and etermined ap sure such emporw o from Thesteam p1pe 3 e thereitre for 15 and end thereot; 211

index; of the mo cyl pipe

The cylinder 1 1 mometer the oper pemtul der. 39 by Which mew t contactsWit der 25 Which 1s con've 40 ject to (ll'Ylll the cvhnder char andsatisfactory ev tur metallic ribbon with the inside which is Wide eholurfrom cli-mhi.

rem in the pulp 111 p nel l v noes it increases in comes pasty.

With an exceedingly Wet pulp a less volume of it will be permitted topass to the cylinder than in case of pulp requiring but littleevaporating; and the volume of pulp passing to tne cylinder may be thusregulated by means of the valve 29; v

It. will be seen that the process is con tinuous, and that it may beconducted with a minimum amount of labor.

The invention admits of modification and changes, and a right isreserved to all such changes as do not depart from the scope and spirit]of the invention.

Particular attention is directed to the depth of the channel formed lythe helical Walls ll. By this means a sufiicient body of the liquid pulpWill be confined to allow the material to retain a sufficient fluidityas it passes through the apparatus to allow it. to flow in a helicalcourse toward the scraper under the centrifugal force. By inspecting thematerial discharged through pipe 41 the operator can determine Whether agreater or less amount of the puree should be Fed through pipe 27. Itthe product is too stiff thepure will be fed more rapidly. If not stillenough it Will be fed more slowly.

I claim: I

1. In an evaporator, a steam cylinder; an evaporating cylinder inside ofsaid steam cylinder; means to supply fluid pulp to the inside of theevaporating cylinder at one end thereof; helical means secured to theinside of said evaporating cylinder for passing pulp through saidevaporating cylinder, to the other end thereof; a scraper arranged toscrape the product from the cylinder at said other end and a pipeleading from said "scraper through the end of the cylinder to dischargethe product.

2. In an evaporator, a steam cylinder; an evaporating'cylinder inside ofsaid steam cylinder; said evaporating cylinder being provided on itsinner peripheral Wall with helical channel of considerable depth er;-tending from one end of said cylinder toward the other end; means forrevolving said evaporating cylinder; means for su plying a regulatedflow of liquid pulp to one end of said channel; a scraper at the otherend of the channel arranged to scrape the material from the Wall oftheevaporating cylinder the upper side of said cylinder and a pipeleading from said scraper through the end of the cylinder to dischargesaid material for passing pulp through said evapo 'ating cylinder.

'3. In an evaporator, a Steam cylinder havplates at the ends thereof; anevaporatcylinder inside oi said steam cylinder; hollow shafts in theends of said evaporating cylinder and mounted in said plates; helicalmeans secured to said evaporating cylinder for passing pulp through saidevapor ting cylinder to the top of the inteof one end or the evaporatingcylinde":

through through said rior peripheral Wall at one end of evaporatingcylinder; and a ranged to receive the product and to discharge by gravitplate at that end, 7

l. In an evaporator, a s'eam wylinder having hearing plates in the endsthereof; hollow shaft in said hearing plates; an evaporating cylindersecured to said hollow shafts; means for rotating said evaporatingcylinder and shafts; means "for supplying a regulated quantityol pulp tothe inteis" l llGlical means secured to the inner periphery of the.evaporating cylind said evapora-c g; scraper inside said cvlinder,thereof near the discha ge end, material from the inside of the 1 Wallat the end of the evaporatin c and a pipe extending down scraper and outhrough the end We cylinders to discharge the product.

5. In an evaporator,a steam cylinder having bearing plates in the endsthereof; hollow shafts in said bearing plates or said cylinder; anevaporating cylinder secured to said hollow shafts; means for rotatingsaid evaporating cylinder and said hollow shats; a pipe for dischargingpulp by grav- 'ity into said evaporating cylinder; a scraper the top 01said cylinder near the end thereof; a pipe leading down from saidscraper through the hearin plate at one end of the cylinder fordischarging the evaporated pulp from said evaporating cylinder; and ahelical ribbon for passing said pulp from said discharge pipe to saidscraper. V

6. In an evaporator, a heated cylinder; hollow shafts at the ends ofsaid cylinder; bearings for said shafts; means for rotating said shaftsand heated cylinder; a helicalribbon integral with .the insideperipheral walls of the heated cylinder "or passing pulp heatedcylinder; and means tor scraping'the product trom the other end of saidcylinder and disc ng it by gravity through the hollow SlldIe at suchother end.

'1 in an evaporator, a. stationary cylinder; a revo vable cylinder insaid stationary cylinder; means for revolving said revolvable cylinder;means i carrying pulp material to said revolvable c helical meanssecured der; to the inner periph- L cylinder tor causing said materialto pass in a heli'al around the inside eripheral 1Y2 revolving cylinder;and means such material 111 said wall at end of the cylinder and J. 8.ln an e anorator. a sta" J. der; revolvable cylinder in ary cylinder; aguiding ribbon i ranged against the peripheral Wall in said revolvahlecylinder for passing pulp through said cylinder; means for revolvingsaid revolvable cylinder; means for convey-- ing pulp to one end of thechannel formed by said helical ribbon inside said revolvahle cylind a;and means for coll cting the prodnot from the other end 01 the saidclmnnel and discharging: the same from said revolvahle cylinder.

9. 111 an evaporator, in combination with a stationary cylinder andmeans for heating said cylinder; oi another cylinder seatedrevoli'al'il; inside of said stationary cylinder; a metallic helixsecured to the inner wall oi said inner cylinder for passing pulpthrough said cylinder; means to revolve said inner cylinder; at so aperto scrape the material from the inner Wall of said inner cylinder; andmeans to supply pulp material to said inner cylinder.

10.111 an evaporator, the combination with a stationary cylinder andmeans for heating said cylinder; of a cylinder reyolw' revolvablecylinder and to discharge by gravity through one end of said revolvahlecylinder.

In testimony whereof, I have hereunto set my hand at Los AngelesCalifornia, this 22nd day of April, L919.

' FERNANDO C. MARZO. Witness:

VVM. M. GENTLE.

